campbell



H. W. CAMPBELL.

CHECKLINE MIACHMENT.

MHlcnrlon FILED ocr. l5. 1919.

1,315,703. mwnmdsept. 9, 1919.

2 SHEETS-SHEET l.

02M mf H. W. CAMPBELL..

CHECKLINT ATTACHMENT.

AIPUUMION mw ucr. 15. wm.

l ,3 l 5,703 .T lamnfmlScpt. 9, 1919.

2 SHEETS-SHEET 2.

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HARDY 'WEBSTER CAHIl'BELL, 0l' LINCOLN, NEBESKA..A

' `orrnexnnm ATTACHMENT.

Specication of Letters Patent. I Patented Sept. 9, 1919.

Application leni |`Ckrtober i5, 191B. Serial No. 258,233.

.To all `whom it may concern.'

Be it known that LHARDY Wnsrnn CamL een., a citizen of the United States, resident of Lincoln. county of Lancaster, State ot Nebraska, have invented certain new and useful Improvements in Checkline Attachments, of which the following is a specification.

The object of my inventionA is to provide a means for using a straight check line and for automatically shifting one end of the cheek line, whereby the operator of the machine can dispense with a helper, operate a three or more row plantel' and shift both ends of the check line while stationed with the machine at one end.

A further object is to provide an attaehment by the use of which the rows can be checked straighter and with more uniformity then where the check line is oblique or at an angle, such angular arrangement of the line resulting from the lack of an automatic shifting n'leans at one end.

The invention consists generally in varions constructions and combinations, all as hereina iter described and particularly pointed out in the claims.

In the accompanying drawings formingl part oi' this speciication,

Figure l is a diagrammatic View, i1lus- *t1-ating my check line attachment in use,

lFig. 2 is a detail `View, showing'` the Inanner of anchoringthe attaclnnent and holding the shifting arm in place,

Fig. 3 is a detail view of the shifting arm and anchoring;r means.

Fig. i is a detail View of the trip device for releasing the shifting,r arm,

Fig. 5 is a detail view of one of the buttons on the check line.

In the drawing, 2 represents a sceder or planter of any suitable type. 3 is a check wire havingr a stake 4 at one end for holding the wire in place. 5 is a rod placed hori zontally upon the ,f ,nound and secured by means of stakes G which pass through loops 7 in said rod. 8 is an arm, preferably of tubing, having a hub S) on the bar 5 and 10 is a sprinpycoiled on said bar and attached thereto at one end and looped under the arm 8, the tension of said spring; normally lifting, on said arm to swing it from the dotted line position shown in Fig. l to the full line position therein. A suitable brace 11 is provided between the bar 5 and the arm 8. A stake l2 is provided at the outer end of the'arln 8 and has a projecting pin-13 and a dogr 1iL is loosely mounted on the arm 8 between cotter pins l5 in position to engage the pin 13 and normally lock the arm in its depressed horizontal position. The dop: is disengaged from the pin. 13 by means of the trip line 16. The check line is provided with the usual huttons 18 arranged at predetermined intervals for operating the seed dropping mechanism leased, is swung by the tension ot its springr to the other side of the bar 5 or from the position shown in dotted lines in Fig. 1 to that illustrated by full lines in said figure. The arm S thus released will swing in a vertical plane through 180 degrees of a circle and over six rows of plants and the operator mayT then drive back to the starting point following the check line which has been swung by the movement of the arm to a position to form a ,guide for the planter back to the side of the lield from which the machine originally started. Then this has been done, the bar 5 may be moved with the posts to the position indicated by dotted lines in Fig. 1 and when this is done, the clip 19 mounted on the arm 9.0 that is carried by the bar 5 is swung' to a position over the arm S to prevent the arm from being thrown by the spring 10 before the operator is ready to release said arm by the movement of the trip line. v

The operation of the planter as described is then repeated and continued thereafter, the swinging arm moving' one end of the check line over the rows of plants from one position to the other without hand labor and without the necessity of more than one man to handle the machine and check line, and enables the operatorto keep the check line straight or parallel with the preceding row from one end of the row to the other.

I claim as my invention:

1. A check wire attachment comprising a rod having means for fastening it in a horizontal position on the ground, an arm mounted to swing on said rod fromv one side to the other thereohmeans or normally locking seid arm onone side of said rod, means for tripping seid locking means to allow said arm to swing to the other side of said rod, and a cheek wireattaehed et one end to said arm to be shifted thereby.

2. The combination. with a. check wire, of means for automatically shifting one enti of said wire from one point in the field to another and means for controlling said shifting means from the other end of said check wire. Y

3. A check wire attachment oomprising a rod having means or fastening it horizolr tally on the ground, an arm mounted to swing thereon, a Vcheck Wire attached to said arm, a' stake driven into the ground ano having e pin nearvsaid arm, a locking latch carried by said arm to engage seid pin, :i Y

tripy line for releasing Aseid. latch und a spring for Vswning said erm and check wire .rom one si c of said. rod to the other.

4l The combination, with a check wire having buttons thereon and holes in said buttons, of a swinging arm to which one l end of said wire is attached, means for locking said arm in a. liorizontai position on the ground at one side of said locking means, and a trip line passing throughseid holes and connected to seid locking means for tripping it to allow said erm to swing with said check Wire to the other side of saicl loclnlng means.

5. The combination, with a check line, of means for automatically shifting one end of said line from one point in the eld to another, and means remote from said end of the line for controlling said shifting means.

In Witness whereo, I have hereunto set my hand this 25th der of July, 1918.

HARDY WEBSTER CAMBELL. 

